Lucent Technologies 8.2 User Manual

Issue 1

April 2000

Features and technical reference 

1133

Administered Connections 

Refer to 

‘‘Using access security gateway’’ on page 319

 for instructions.

An Administered Connection (AC) is a connection between 2 access or data 
endpoints. DEFINITY ECS automatically establishes the connection based on the 
attributes you administer. An AC provides the following capabilities:

■

Support of both permanent and scheduled connections

■

Auto Restoration (preserving the active session) for connections routed 
over Software Defined Data Network (SDDN) trunks

■

Administrable retry interval (from 1 to 60 minutes) per AC

■

Administrable alarm strategy per AC

■

Establishment/retry/auto restoration order based on administered priority

The SDDN provides virtual private-line connectivity using the AT&T Switched 
Network. Access to the service is provided via an Integrated Services Digital 
Network (ISDN) trunk group whose Service Type field is 

. The system uses 

the Destination field on the Administered Connection screen to route calls when 
AC is active, based on associated authorized time-of-day fields. 

Establish an AC between the following:

■

Two endpoints on the same switch

■

Two endpoints in the same private network, but on different switches

■

One endpoint on the controlling switch and another endpoint off the private 
network

In all configurations, administer the AC on the switch that has the originating 
endpoint. For an AC in a private network, if the two endpoints are on two different 
switches, normally the connection routes via Automatic Alternate Routing (AAR) 
through tie trunks (ISDN, DS1, or analog tie trunks) and intermediate switches. If 
required, route the connection via Automatic Route Selection (ARS) and 
Generalized Route Selection (GRS) through the public network. The call routes 
over associated ISDN trunks. When the far-end answers, a connection occurs 
between the far-end and the near-end extension in the Originator field on the 
Administered Connection screen.